Polaris RZR RS1 Heavy-Duty Axle—X300


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Rhino X300 Axles Change the Game
SuperATV’s Rhino X300
axles for the Polaris RZR RS1 change the game. With a 300M shaft that flexes
to absorb force instead of breaking, you get CV’s that don’t break, and a
drivetrain that won’t buckle. Go on bigger, meaner rides and drive like a
maniac — that’s what the X300 is all about. We take it over the top by backing
it with the industry’s best 3-year warranty. It’s the best axle warranty

It’s All About the Flex
is about more than brute strength, it’s about flex. When X300 gets hit with a
torque load that would break other axles, the 300M shaft twists until the load
is gone then returns to its original position. Our unique Flexshaft™
technology relieves much of the stress that would be transferred to your CVs
and differential with other axles. The result is less wear and tear on much
more valuable drivetrain parts.

make X300 with super-tough 300M alloy steel. 300M is an aircraft-grade alloy
utilized for its high strength and higher silicon composition, along with its
inclusion of vanadium. These unique properties of 300M combined with our
specific design makes the X300’s signature flex possible. It makes doing
anything you want with wild vehicle modifications possible.

Perfect for Big Tires and Big Rides
What can your UTV
get away with when your axle saves your from yourself with a good flex? Flex
means riding harder with bigger tires on tougher trail without breaking
anything. If you’re the kind of rider that rides too hard for your machine,
X300 is for you.

3-Year Warranty
not done yet, X300 comes with a 3-year warranty! That’s the industry’s best
warranty for any axle anywhere. That’s how confident we are in our X300 Axles.


  • 300M alloy steel shaft
  • CV components made of 300M and 4340
    alloy steel
  • Maximized CV, spider, and cage size for superior
  • Flexshaft™ technology absorbs impact
  • Reduces strain
    on CVs and drivetrain components
  • CVs packed with proprietary high-
    temp grease
  • Backed by a 3-Year Warranty, the industry’s best axle


  • Polaris RZR RS1 : 2018+

Replaces OEM Part

Front : 1333434
Rear : 1333124, 1333439, 133718

NOTE: Not compatible with Anti-Lock Brake Systems (ABS)

Additional information

Axle Location

Front, Rear